Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1988-12-29
1991-02-19
Lander, Ferris H.
Chemistry: fertilizers
Processes and products
Organic material-containing
71 28, 71 29, 71 6405, 71 6413, C05C 900
Patent
active
049941003
ABSTRACT:
An improved aqueous nitrogen fertilizer has been developed that increases first-year nitrogen uptake efficiency to plants. It is also a nitrogen fertilizer with features to minimize exposure to nitrogen loss. It is a nitrogen fertilizer consisting of urea, dicyandiamide, ammonium thiosulfate, and optionally a phosphate compound which is preferably an ammonium phosphate compound. This composition can contain a dye and/or various mineral micronutrients. This homogeneous granular fertilizer can be applied to a field crop in a single application and is available to the growing plant throughout its growth and maturing cycle. The homogeneous granular fertilizer composition is conveniently prepared by the addition of a dicyandiamide, and a solution of ammonium thiosulfate to molten urea. A phosphate compound and preferably ammonium polyphosphate, would be added along with these components.
REFERENCES:
CA 11(1):64835, Synergistic . . . Dicyanodiamide, 11/10/88, Solansky et al.
CA 108(5):36742f, Effect of . . . Soils, 1987, Efimov et al.
CA 108(25):220840n, Effect of Ammonium . . . Soils, 1987, Fairlie.
CA 108(11):93576d, Nitrification . . . Temperature, 1987, Singh et al.
CA 74(16):77917g, Stabilized Ammonium Thiosulfate, 1971, Strieu.
Article by R. J. Goos and B. E. Johnson "Combining Nitrification Inhibitor Technologies", pp. 83-88. Proceedings of the 19th North Central Extension Industry Soil Fertility Conference, 1989.
Reference by D. W. Reeves and J. T. Touchton, "Division S-8- Fertilizer Technology and Use" pp. 1353-1357, Soil. Sci. Soc. Am. 2, vol. 50, 1987.
Abstract of the Dec. 1985 issue of Agronomic Abstracts, Use of Dicyandiamide as a Nitrification Inhibitor in Direct Seeded Rice Cultures.
Roland D. Hauck, Argicultural Research Branch, National Fertilizer Dev. Ctr. Nitrification, Its Inhibition & Immobilization/Mineralization Processes in Soil.
Nickel: An Essential Micronutrient for Legumes and Possibly All Higher Plants Science, vol. 222, p. 622.
Identification of Ammonium Thiosulfate as a Nitrification and Urease Inhibitor; Soil Science Society of America Journal, vol. 49, No. 1, Jan.-Feb. 1985, R. J. Goos.
The Nitrogen with a Better N Result (pamphlet), Agrico, Division of Freeport-McMoRan Resource Partners.
Super N Goes to Market (article) Feature p. 12.
Urea Hydrolysis and Ammonia Volatilization Characteristics of Liquid Fertilizer Mixtures; R. J. Goos; Journal of Fertilizer Issues Jun. 1985, pp. 38-41.
A Study of Anticaking Treatments for Urea, by G. M. Boluin and A. W. Allen American Chemical Society presentation at annual meeting held Sep. 9-12, 1985.
Abstract of the Dec. 1985 issue of Agronomic Abstracts, Effect of Phosphoroamite as Urease Inhibitors in Field Trails with Corn.
Solubilities and Stabilities of the Nitrogen Loss Inhibitors Dicyandiamide, Thiourea, and Phenyl Phosphorodiamidate in Fluid Fertilizers, J. Gautney, Y. Kim, & A. Barnard, National Fertilizer Dev. Ctr. Jul. 13, 1984.
The Agrico Super N Story (brochure) by Agrico, a division of Freeport-McMoRan Resource Partners.
National Water Summary 1984-Water Quality Issues, p. 93; Overview of the Occurrence of Nitrate in Ground Water of the United States, by Robert Madison, Jilann O. Brunett.
Agronomic and Environmental Effects of Nitrification Inhibitor Use; by G. L. Malzer, Soil Science Department, University of Minnesota.
Abstract of U.S. Pat. No. 4,500,336; Process for Making Granules Containing Urea as the Main Component, Filed Jun. 18, 1982, Ser. No. 390,044, Hijfte.
American Chemical Society presentation given at the 1985 annual meeting on Laboratory and Field Evaluation of Ammonium Thiosulfate as a Nitrification and Urease Inhibitor, informal report.
United States Statutory Invention Registration, No. H25, published Feb. 4, 1986; Thiophosphoryl Triamide as a Urease Inhibitor, Robert Radel.
U.S. Pat. No. 4,500,335 from the Official Gazette dated Feb. 19, 1985; Composition of Matter and Method of Use for Nitrogen Fertilization, Lloyd B. Fenn.
Balser Richard L.
Sutton Allen R.
Weston Charles W.
Freeport McMoRan Resource Partners
Lander Ferris H.
LandOfFree
Homogeneous granular nitrogen fertilizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Homogeneous granular nitrogen fertilizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Homogeneous granular nitrogen fertilizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1140960